Lubricator



{No Model.)

P. J. DONOHUE. LUBRIGATOR Patented Jan. 11,1898.

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PATRICK J. DONOHUE,

OF ROBINSON UTAH.

LU BRICATO R.

SPECIFICATION forming part of Letters Patent N o. 597,371, dated January11, 1898.

Application filed August 20,1896.

To a/ZZ whom, it may concern:

Be it known that I, PATRICK J. DoNoHUE, a citizen of the United States,residing at Robinson, in the county of .I uab, State of Utah, haveinvented certain new and useful Improvements in Luhricators, of whichthe following is a description, reference being hadl to the accompanyingdrawings, and to the letters of reference marked thereon. i

My invention relates to lubricators for upright shafts or shafts not ina horizontal plane, and is herein shown as applied to a shaft of a panor settle used in milling ores.

My object is to provide a construction in which the lubricating materialcan be fed to the interior of the machine from the outside and also togenerally improve the construction of these devices.

To these ends the invention consists in the various matters hereinafterdescribed and claimed. Y

In the accompanying drawings, Figure lis a perspective, partly insection, of an amalgamating-pan With my present invention applied. Fig.2 is an enlarged central vertical sectional view; and Fig. 3 is anenlarged transverse sectional view on line 3 3, Fig. 2. Fig. 4 shows theshaft in transverse and vertical section with the keys removed.

A is the fixed base of an amalgamatin gpan, and A is the verticalshaft-bearing secured thereon and through which passes the rotary shaftB of the machine. The upper end of the bearing A' is hollowed to form anoilcup a, as clearly shown in Fig. 2, and the interior of the bearinghas the usual Babbittmetal lining, as is also shown in said figure.

The upper end of the shaft B is hollovved or concaved to form anpil-cuph, and from this cup the shaft is provided with a plurality of channelsh2, which extend down to a point adjacent to the cup a in the bearing A.

The rotary part O of the machine which Works in the pan to act upon thecontents thereof is shown in the form of a tube or sleeve o, ixedlysecured uponthe channeled or grooved end of the shaft B and formed atits lower end with depending arms O5, extending parallel with andsurrounding the bearing A. These arms O3 are intended to carry thestirrers or other devices which act upon the contents of the pan. Theinterior of the tube or Serial No. 603,283. (No model.)

sleeve is providedwith longitudinal grooves c5, which register with thegrooves or channels 62, and into these registering grooves or channelsh2 c5 the keys c4 are placed which secure the rotary part O to the shaftB. The grooves or channels h2 are of greater depth than the portions ofthe keys Which enter them, so that between the keys and the bases of thechannels b2 will be formed the oil-passages ?J', as best shown in Fig.3. This is best effected by making the grooves or channels ?)2 in theform of a keyhole-slot in crosssection and providing the keys withbeveled edges to fit the outer Wider portions of the channels b2, as isalso shown in Fig. 3. Thus the same channels or grooves h2 which receivethe keys will also serve to form oil passages or conduits, therebylessening the number of grooves required in the shaft.

The upper end of the rotary part O of the machine is formed as a cap orhousing O on the upper end of the sleeve c. This cap or housing has avertical threaded openingdown through which extends the usual screw O2,which rests at its lower end on the upper end of the shaft B, so as toadj ust the rotary part O up and down on the shaft. In the upper end ofthis cap or housing, forming the top or upper end of the part O, isformed an annular `oil cup or receptacle c', and from the bottom of thiscup or receptacle c lead the inclined passages c2, the inner ends ofwhich open into the opening through which the screWO2 passes. It Will beseen, therefore, that the oil will pass from cup c to the screw, thenceto the cup b in the upper end of the shaft B, and down through thelongitudinal channels or passages b to the cup a., from which it willpass into the bearing A' and lubricate the shaftV B, which is the objectsought to be attained.

In order that no oil may find its Way outwardly from the lower end ofsleeve c along the arms O3 into the contents of the pan, I form adepending annular iange OG at the lower end of the sleeve c and Within'the upper ends of the arms O3, so that any oil es caping below thesleeve will iioW from the said ange down the shaft or drop into the cupa.

1. The combination With the vertical bear- IOO Ass

ing and a shaft turning therein and provided above the bearin g withlongitudinal oil-channels leading down from its upper end to the upperend of said bearing, of a part rotated by the shaft and having a sleevefitting the upper end thereof and secured thereto, a cap or housingsecured on the upper end of said sleeve and provided with a verticalthreaded opening, an annularl oil cup or receptacle communicating withsaid opening and the screw extending down through said opening to theupper end of the shaft and along which the oil fiows from said cup tothe upperend of the shaft and the oil-channels therein, substantially asdescribed.

2. The combination with the vertical bearing and a shaft turning thereinand provided with longitudinal grooves or channels leading from itsupper end down to the upper end of said bearing, of a part rotated bythe said shaft and having a sleeve fitting the upper end of the shaftand provided-with longitudinal grooves or channels registering withthose in the shaft, keys entering said registering grooves or channelsto key the parts together, said keys however only closing the outersides of the shaft and thereby forming oil-passages between the keys andbases of said grooves or channels, and means for sup-- plying oil to theupper ends of said passages, substantially as described.

3. The combination with the vertical bearing having a cup in its upperend, and the shaft turning in said bearing, provided in its upper endwith acup or eonoavity and having longitudinal channels leading downfrom said cup to a point above the said bearing, of a part rotated bysaid shaft and having asleeve fitting the channeled end thereof, andprovided with channels registering with the shaftchannels, keys enteringsaid channels to connect the parts; said keys however only partiallyfilling the shaftchannels and thereby forming oil-passages between thebases of the channels and the keys, a cap secured on the upper end ofthe sleeve and provided with an oil-cup in its upper side and means forconducting ihe oil from said cup to the cup in the upper end of theshaft, substantially as described.

4. The combination with a longitudinallychanneled shaft, of a parthaving channels registering with those of the shaft, keys entering saidregistering channels but not eX- tending to the base of the shaftchannels whereby said part is secured to the shaft for rotation therebyand whereby also passages are formed for conducting oil along the shaftand past the part secured to it for rotation, substantially asdescribed.

5. yThe combination with the shaft having longitudinal channels shapedin cross-section like a keyhole-slot, of a part fitting the shaft andhaving channels registering with those of the shaft and keys closelyfitting the channels in said rotated part and having beveled edgesfitting the outer portions of the shaftchannels whereby said part issecured to the shaft for rotation thereby and whereby also theinnercircular portionsof said shaft-channels form oil-passages past the partcarried by the shaft for rotation thereby, substantially as described.

6. The combination of the vertical bearing having a cupin its upper end,and a shaft extending up through and rotating in said bearing; saidshaft having an oil channel or passage leading from its upper end downto a point adjacent to the upper end of said bearing, with the partsecured to the upper end of the shaft for rotation thereby and having acap or housing at its upper end above the upper end of the shaft; thesaid housing being kprovided with an oil cup or receptacle adapted tosupply the upper end of the shaft channel or passage with oil,substantially as described.

7. The combination with the vertical bearing having an oil cup orconcavity in its upper end and the shaft extending through and turningin said bearing andprovided with longitudinal oil-channels leading fromits upper end down to a point adjacent to said oilcup, of the rotarypart comprising a sleeve secured on the upper portion of the shaft, andhaving means at the upper end for supplying said channels with oil; thelower end of said sleeve being provided with offset depending arms and adepending annular fiange at its lower extremity within the upper ends ofsaid arms; substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

PATRICK J. DoNoHUE.

Witnesses;

GERTRUDE E. CORRER, BENJ. W. J ENNENs.

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